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<head>
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    <title>Document</title>
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<script>
    function getRandom(min,max){
    return Math.floor(Math.random()*(max-min+1)+min);
}
var random = getRandom(1,10);
while (true){
    var num= prompt('请输入一个1~10的整数:');
    if(num==null){
        break;
    }else if (num>random){
        alert('你猜大了');
    }else if (num<random){
        alert('你猜小了')
    }else{
        alert('恭喜你，猜对了')
        break;
    }
}
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